note 107069 added to book.image

From: Date: Wed, 04 Jan 2012 19:41:15 +0000
Subject: note 107069 added to book.image
Groups: php.notes 
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In case your script is using output-buffering-functions somewhere, then you have to clear the buffer first ( with ob_clear() ), before outputting an image with a function like imagepng(). And you should make sure that no buffer will get send after outputing an image by using the ob_end_flush()-function. Furthermore you should check if a buffer has already been flushed somewhere before. This can be done using the headers_sent()-function. Here is the full solution: ============== if(headers_sent()){ die('Headers have been send somewhere within my script'); } ob_clean(); //Clears the buffer header('Content-type: image/png'); imagepng($img, NULL, 0, NULL); ob_end_flush(); //Now we send the header and image plus we make sure that nothing will get send from now on (including possible shutdown-functions and __destruct()-methods) till the end of page-execution ---- Server IP: 217.160.235.204 Probable Submitter: 88.67.241.214 ---- Manual Page -- http://www.php.net/manual/en/book.image.php Edit -- https://master.php.net/note/edit/107069 Del: integrated -- https://master.php.net/note/delete/107069/integrated Del: useless -- https://master.php.net/note/delete/107069/useless Del: bad code -- https://master.php.net/note/delete/107069/bad+code Del: spam -- https://master.php.net/note/delete/107069/spam Del: non-english -- https://master.php.net/note/delete/107069/non-english Del: in docs -- https://master.php.net/note/delete/107069/in+docs Del: other reasons-- https://master.php.net/note/delete/107069 Reject -- https://master.php.net/note/reject/107069 Search -- https://master.php.net/manage/user-notes.php

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